Search for Invisible Decays of Sub-GeV Dark Photons in Missing-Energy Events at the CERN SPS / D. Banerjee [et al.]
Уровень набора: Physical Review Letters, Scientific Journal = 1958-Язык: английский.Страна: .Резюме или реферат: We report on a direct search for sub-GeV dark photons (A′), which might be produced in the reaction e−Z→e−ZA′ via kinetic mixing with photons by 100 GeV electrons incident on an active target in the NA64 experiment at the CERN SPS. The dark photons would decay invisibly into dark matter particles resulting in events with large missing energy. No evidence for such decays was found with 2.75×109 electrons on target. We set new limits on the γ−A′ mixing strength and exclude the invisible A′ with a mass ≲100 MeV as an explanation of the muon gμ−2 anomaly..Примечания о наличии в документе библиографии/указателя: [References: 58 tit.].Аудитория: .Тематика: электронный ресурс | труды учёных ТПУ | фотоны | электроны | Темная Материя | распад Ресурсы он-лайн:Щелкните здесь для доступа в онлайнНет реальных экземпляров для этой записи
Title screen
[References: 58 tit.]
We report on a direct search for sub-GeV dark photons (A′), which might be produced in the reaction e−Z→e−ZA′ via kinetic mixing with photons by 100 GeV electrons incident on an active target in the NA64 experiment at the CERN SPS. The dark photons would decay invisibly into dark matter particles resulting in events with large missing energy. No evidence for such decays was found with 2.75×109 electrons on target. We set new limits on the γ−A′ mixing strength and exclude the invisible A′ with a mass ≲100 MeV as an explanation of the muon gμ−2 anomaly.
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